finish Builder Design Pattern

jacobklo · jacobklo · commit 70003ac11f93 · 2019-02-19T21:51:11.000-06:00
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
@@ -65,5 +65,5 @@ add_executable(jalgorithmCPP
         Implementation/Array/SpiralMatrix.h
         DesignPattern/Creational/AbstractFactory.h
         DesignPattern/Structural/Adapter.h
-        )
+        DesignPattern/Behavioral/Iterator.h DesignPattern/Creational/Builder.h)
 
diff --git a/src/DesignPattern/Behavioral/Iterator.h b/src/DesignPattern/Behavioral/Iterator.h
@@ -0,0 +1 @@
+// Check out CustomDataStructure/Deque.h
diff --git a/src/DesignPattern/Creational/Builder.h b/src/DesignPattern/Creational/Builder.h
@@ -0,0 +1,57 @@
+//
+// Created by Jacob Lo on Feb 19, 2019
+//
+
+#pragma once
+#include <iostream>
+
+using namespace std;
+
+namespace Builder {
+    class Car {
+        Car(string c, string e) : color(c), engine(e){}
+
+    public:
+        const string color, engine;
+
+        struct CarBuilder {
+            string color = "Red", engine = "Boxer";
+
+        public:
+            CarBuilder& setColor(string c) {
+                this->color = c;
+                return *this;
+            }
+            CarBuilder& setEngine(string e) {
+                this->engine = e;
+                return *this;
+            }
+
+            Car build() {
+                return Car(color, engine);
+            }
+        };
+    };
+
+    ostream& operator<< ( ostream& out, const Car& c) {
+        out << "This is a " << c.color << " color car with " << c.engine << " engine." << endl;
+        return out;
+    }
+
+    void test() {
+        Car c1 = Car::CarBuilder().setColor("Blue").setEngine("Inline").build();
+        Car c2 = Car::CarBuilder().setColor("Black").setEngine("V6").build();
+
+        Car::CarBuilder builder;
+        Car c3 = builder.build();
+
+        builder.setColor("Green");
+        Car c4 = builder.build();
+
+        builder.setEngine("V8");
+        Car c5 = builder.build();
+
+        cout << c1 << c2 << c3 << c4 << c5;
+    }
+
+}
diff --git a/src/main.cpp b/src/main.cpp
@@ -20,8 +20,6 @@
 
 using namespace std;
 
-
-
 int main() {
 
 }

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+// Check out CustomDataStructure/Deque.h`
Original file line number	Diff line number	Diff line change
`@@ -20,8 +20,6 @@`
`20`	`20`
`21`	`21`	`using namespace std;`
`22`	`22`
`23`		`-`
`24`		`-`
`25`	`23`	`int main() {`
`26`	`24`
`27`	`25`	`}`